commit c18790018be5d7ea7061ccbc81f3044e74adc823
author Dan Stoza <stoza@google.com> Thu May 22 15:59:05 2014 -0700
committer Dan Stoza <stoza@google.com> Fri May 23 09:19:03 2014 -0700
tree d03920775e72b284447202d109996002ce5e1784
parent 9bf29a81df0eaf923f3a9821655c663290a0a854

SurfaceFlinger: Add sourceCrop to screenshot

Adds a sourceCrop Rect parameter to screenshot commands, which allows
clients to capture only a portion of the screen instead of the whole
screen.

Bug: 15137922
Change-Id: I629447573cd34ffb96334cde7ba02490b9ea06d8

libs/gui/ISurfaceComposer.cpp

diff --git a/libs/gui/ISurfaceComposer.cpp b/libs/gui/ISurfaceComposer.cpp
index 58a2ae2..c6c88a9 100644
--- a/libs/gui/ISurfaceComposer.cpp
+++ b/libs/gui/ISurfaceComposer.cpp
@@ -104,7 +104,7 @@
 
     virtual status_t captureScreen(const sp<IBinder>& display,
             const sp<IGraphicBufferProducer>& producer,
-            uint32_t reqWidth, uint32_t reqHeight,
+            Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
             uint32_t minLayerZ, uint32_t maxLayerZ,
             bool useIdentityTransform)
     {
@@ -112,6 +112,7 @@
         data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
         data.writeStrongBinder(display);
         data.writeStrongBinder(producer->asBinder());
+        data.write(sourceCrop);
         data.writeInt32(reqWidth);
         data.writeInt32(reqHeight);
         data.writeInt32(minLayerZ);
@@ -328,6 +329,8 @@
             sp<IBinder> display = data.readStrongBinder();
             sp<IGraphicBufferProducer> producer =
                     interface_cast<IGraphicBufferProducer>(data.readStrongBinder());
+            Rect sourceCrop;
+            data.read(sourceCrop);
             uint32_t reqWidth = data.readInt32();
             uint32_t reqHeight = data.readInt32();
             uint32_t minLayerZ = data.readInt32();
@@ -335,7 +338,7 @@
             bool useIdentityTransform = static_cast<bool>(data.readInt32());
 
             status_t res = captureScreen(display, producer,
-                    reqWidth, reqHeight, minLayerZ, maxLayerZ,
+                    sourceCrop, reqWidth, reqHeight, minLayerZ, maxLayerZ,
                     useIdentityTransform);
             reply->writeInt32(res);
             return NO_ERROR;